Author: William Penn
Date: 14:26:34 01/02/06
Go up one level in this thread
On January 02, 2006 at 16:27:35, Stuart Cracraft wrote: >>>>[D]r1r1q1k1/6p1/p2b1p1p/1p1PpP2/PPp5/2P4P/R1B2QP1/R5K1 w - - >>>> >>>>Engine: Rybka 1.01 Beta 7 32-bit (704 MB) >>>>by Vasik Rajlich >>>> >>>>20 25:13 +1.70 1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4 >>>> 4.Qa7 Qe5 5.Qe3 Re8 6.b6 Qh2+ 7.Kf1 Bf4 (160.548.890) 108 >>>> >>>>20 28:22 +1.27 1.axb5 axb5 2.Be4 Rcb8 3.Ra6 Kf7 >>>> 4.Ra7+ Kg8 5.Kh2 Qd8 6.Kg3 Rxa7 >>>> 7.Qxa7 Bc7 (181.434.497) 109 >>>> >>>>20 30:42 +0.67 1.Be4 a5 2.axb5 axb4 3.Rxa8 Rxa8 >>>> 4.Ra6 Qd8 5.Qa2 Rxa6 6.bxa6 Bc5+ >>>> 7.Kh2 b3 (196.471.231) 109 >>>> >>>>WP >>> >>>I believe Be4 was the position that DB played that gave Kasparov pause. >>> >>>So to find that in 30 minutes by Rybka is a good accomplishment. >>> >>>Another feather in its hat. >> >>Sorry, I should have been more clear. >>That's multi-PV mode, showing 3 parallel PVs at level 20. >>According to Rybka, 1.Be4 is the third-best move. >>WP > >I own Rybka and am not familiar with this feature, spending >most time playing my (hack) program. > >What is "multi-PV" mode of Rybka do? It's used in analysis (infinite) mode. When an analysis is running, you can press a key to show multiple lines. Each GUI has its own method. With the Chessbase/Fritz GUI, press the "+" key to increase the number of lines, the "-" key to decrease them. With the Shredder Classic GUI, press the "f6" key for more lines, the "f5" key for less. It's useful when you want to see how the engine is thinking, which you can't tell when it is only displaying one line (PV). I still long for the early days when Dan and Kathe Spracklen's Sargon had a beautiful cascading picture window into the complexities of the analysis in progress. I haven't seen anything comparable since then, but would encourage chess authors to consider it. So what(?), if it slows down the engine 5%, or whatever! I like to watch the gears turn!! :) WP
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.